Last change
on this file since 270 was 270, checked in by coas-nagasima, 7 years ago |
mruby版ECNLプロトタイピング・ツールを追加
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Property svn:eol-style
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native
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Property svn:keywords
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Id
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Property svn:mime-type
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text/x-csrc
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File size:
1.0 KB
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Rev | Line | |
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[270] | 1 | /*
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| 2 | ** hash.c - Hash class
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| 3 | **
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| 4 | ** See Copyright Notice in mruby.h
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| 5 | */
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| 6 |
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| 7 | #include "mruby.h"
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| 8 | #include "mruby/array.h"
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| 9 | #include "mruby/hash.h"
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| 10 |
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| 11 | /*
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| 12 | * call-seq:
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| 13 | * hsh.values_at(key, ...) -> array
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| 14 | *
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| 15 | * Return an array containing the values associated with the given keys.
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| 16 | * Also see <code>Hash.select</code>.
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| 17 | *
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| 18 | * h = { "cat" => "feline", "dog" => "canine", "cow" => "bovine" }
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| 19 | * h.values_at("cow", "cat") #=> ["bovine", "feline"]
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| 20 | */
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| 21 |
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| 22 | static mrb_value
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| 23 | hash_values_at(mrb_state *mrb, mrb_value hash)
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| 24 | {
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| 25 | mrb_value *argv, result;
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| 26 | mrb_int argc, i;
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| 27 | int ai;
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| 28 |
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| 29 | mrb_get_args(mrb, "*", &argv, &argc);
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| 30 | result = mrb_ary_new_capa(mrb, argc);
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| 31 | ai = mrb_gc_arena_save(mrb);
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| 32 | for (i = 0; i < argc; i++) {
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| 33 | mrb_ary_push(mrb, result, mrb_hash_get(mrb, hash, argv[i]));
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| 34 | mrb_gc_arena_restore(mrb, ai);
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| 35 | }
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| 36 | return result;
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| 37 | }
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| 38 |
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| 39 | void
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| 40 | mrb_mruby_hash_ext_gem_init(mrb_state *mrb)
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| 41 | {
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| 42 | struct RClass *h;
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| 43 |
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| 44 | h = mrb->hash_class;
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| 45 | mrb_define_method(mrb, h, "values_at", hash_values_at, MRB_ARGS_ANY());
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| 46 | }
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| 47 |
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| 48 | void
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| 49 | mrb_mruby_hash_ext_gem_final(mrb_state *mrb)
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| 50 | {
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| 51 | }
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